<template>
  <div>
    c

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="9">
          <!-- 搜索与添加区域 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="9">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
            <!--  {{scope.row}} 这个作用域插槽可以获取当前行的所有数据  -->
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)">
            </el-button>

            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
            <!-- {{scope.row}} -->
          </template>

        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>

    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <el-form ref="addFormRef" :model="addForm" :rules="addFormRules" label-width="80px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form label-width="70px" :model="editForm" :rules="editFormRules" ref="editFormRef">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </div>
    </el-dialog>

    <!-- 为用户分配角色的Dialog -->
    <el-dialog title="分配角色" width="50%" :visible.sync="setRoleDialogVisible" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>分配新角色:

          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>

      <div slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible=false">取消</el-button>
        <el-button type="primary" @click="savaRoleInfo">确定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    data() {
      // 验证邮箱的规则
      var checkEmail = (rule, value, callback) => {
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) return callback()
        callback(new Error('请输入合法的邮箱'))
      }

      // 验证电话的规则
      var checkMobile = (rule, value, callback) => {
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) return callback()
        callback(new Error('请输入合法的手机号'))
      }
      return {
        // 获取用户列表参数的对象
        queryInfo: {
          query: '',
          // 当前的页数
          pagenum: 1,
          // 当前每页显示多少条数据
          pagesize: 2
        },
        userList: [],
        total: 0,
        // 控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        // 控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        // 添加用户的表单数据项
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 添加用户的表单验证规则对象
        addFormRules: {
          username: [{
              required: true,
              message: '请输入用户名称',
              trigger: 'blur'
            },
            {
              min: 3,
              max: 10,
              message: '长度在 3 ~ 10 个字符',
              trigger: 'blur'
            }
          ],
          password: [{
              required: true,
              message: '请输入用户密码',
              trigger: 'blur'
            },
            {
              min: 6,
              max: 15,
              message: '长度在 6 ~ 15 个字符',
              trigger: 'blur'
            }
          ],
          email: [{
            required: true,
            message: '请输入用户邮箱',
            trigger: 'blur'
          }, {
            validator: checkEmail,
            trigger: 'blur'
          }],
          mobile: [{
            required: true,
            message: '请输入用户电话',
            trigger: 'blur'
          }, {
            validator: checkMobile,
            trigger: 'blur'
          }]
        },
        // 查询到需要修改的用户的信息
        editForm: {},
        // 需要修改的用户规则对象
        editFormRules: {
          email: [{
            required: true,
            message: '请输入用户邮箱',
            trigger: 'blur'
          }, {
            validator: checkEmail,
            trigger: 'blur'
          }],
          mobile: [{
            required: true,
            message: '请输入用户电话',
            trigger: 'blur'
          }, {
            validator: checkMobile,
            trigger: 'blur'
          }]
        },
        // 是否显示用户分配角色的Dialog
        setRoleDialogVisible: false,
        // 需要被分配角色的用户信息
        userInfo: {},
        // 所有角色的数据列表
        rolesList: {},
        // 为用户分配好角色的id(已选中的option)
        selectRoleId: ''
      }
    },
    methods: {
      async getUserList() {
        const {
          data: res
        } = await this.$http.get('users', {
          params: this.queryInfo
        })
        if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
        this.userList = res.data.users
        this.total = res.data.total
        // console.log(res)
      },
      // 监听pagesize改变的事件
      handleSizeChange(newSize) {
        // console.log(newSize)
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      // 监听页码值改变的事件
      handleCurrentChange(newPage) {
        // console.log(newPage)
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      // 监听switch开关状态的改变
      async userStateChanged(userinfo) {
        // console.log(userinfo)
        const {
          data: res
        } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
          // 如果失败就要把状态改回来
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功!')
      },
      // 监听添加用户对话框的关闭事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      // 点击确认，添加新用户
      addUser() {
        var that = this
        this.$refs.addFormRef.validate(async function (isRight, obj) {
          // console.log(isRight)
          // console.log(obj)
          if (!isRight) return false
          // 验证成功可以进行axios请求
          const {
            data: res
          } = await that.$http.post('users',
            that.addForm)
          // console.log(res)
          if (res.meta.status !== 201) return that.$message.error(res.meta.msg !== '' ? res.meta.msg : '添加用户失败')
          that.$message.success('添加用户成功!')
          // 添加完了就隐藏dialog
          that.addDialogVisible = false
          // 刷新一下用户列表(即重新获取)
          that.getUserList()
        })
      },
      // 展示编辑用户的对话框
      async showEditDialog(id) {
        this.editDialogVisible = true
        const {
          data: res
        } = await this.$http.get('users/' + id)
        // console.log(res)
        if (res.meta.status !== 200) return this.$message.error('查询用户信息失败！')
        this.editForm = res.data
      },
      // 监听修改用户信息对话框的关闭事件
      editDialogClosed() {
        // 重置一下input中的数据
        this.$refs.editFormRef.resetFields()
      },
      // 提交修改后的用户信息数据
      editUserInfo() {
        this.$refs.editFormRef.validate(async (isRight) => {
          // console.log(isRight)
          if (!isRight) return this.$message.error('用户信息未通过验证')
          // 发起修改用户的数据请求
          const {
            data: res
          } =
          await this.$http.put('users/' + this.editForm.id, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
          if (res.meta.status !== 200) return this.$message.error('更新用户信息失败')
          this.editDialogVisible = false
          this.getUserList()
          this.$message.success('更新用户信息成功')
        })
      },
      // 删除用户信息
      async removeUserById(id) {
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(error => {
          return error
        })

        // 如果点击确认 将返回字符串 confirm
        // 如果点击了取消了 将返回字符串 cancel 若不写catch来接收错误那么点取消就会报错
        // console.log(confirmResult)
        if (confirmResult !== 'confirm') {
          return this.$message({
            message: '已经取消删除',
            type: 'info'
          })
        }
        const {
          data: res
        } = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) return this.$message.error('删除用户失败')
        this.$message.success('删除用户成功')
        this.getUserList()
      },
      // 展示分配角色的Dialog
      async setRole(userInfo) {
        // 先获取所有的角色列表
        const {
          data: res
        } = await this.$http.get('roles')
        if (res.meta.status !== 200) return this.$message.error('获取所有的角色列表失败')

        this.rolesList = res.data
        console.log(this.rolesList)
        this.userInfo = userInfo
        this.setRoleDialogVisible = true
      },
      // 点击确认并为用户分配角色
      async savaRoleInfo() {
        if (!this.selectRoleId) {
          return this.$message.error('请选择需要分配的角色')
        }
        const {
          data: res
        } = await this.$http.put(`users/${this.userInfo.id}/role`, {
          rid: this.selectRoleId
        })
        if (res.meta.status !== 200) return this.$message.error(`更新角色失败!${res.meta.msg}`)

        this.setRoleDialogVisible = false
        this.getUserList()
        this.$message.success('更新角色成功')
      },
      // 监听分配角色的Dialog关闭事件
      setRoleDialogClosed() {
        this.selectRoleId = ''
        this.userInfo = {}
      }
    },

    created() {
      // console.log(this)
      this.getUserList()
    }
  }

</script>

<style lang="less" scoped>

</style>
